Ada takes it upon herself to go on the offensive and kill Krauser, who by now is almost completely corrupted by the Plaga. Having studied his style and mutation closely before, Ada is more than a match for Krauser and he is killed for good.

Ada and Leon made their way into the sewers as they attempted to flee the infested city, basically cooperating with each other. As they headed towards the sewers, they spotted Annette Birkin, a scientist from Umbrella.